/*    SMPEG - SDL MPEG Player Library    Copyright (C) 1999  Loki Entertainment Software    This library is free software; you can redistribute it and/or    modify it under the terms of the GNU Library General Public    License as published by the Free Software Foundation; either    version 2 of the License, or (at your option) any later version.    This library is distributed in the hope that it will be useful,    but WITHOUT ANY WARRANTY; without even the implied warranty of    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU    Library General Public License for more details.    You should have received a copy of the GNU Library General Public    License along with this library; if not, write to the Free    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.*//* MPEG filters */#ifndef _MPEGFILTER_H_#define _MPEGFILTER_H_/* SMPEG filter info flags */#define SMPEG_FILTER_INFO_MB_ERROR    1#define SMPEG_FILTER_INFO_PIXEL_ERROR 2/* Filter info from SMPEG */typedef struct SMPEG_FilterInfo {  Uint16* yuv_mb_square_error;  Uint16* yuv_pixel_square_error;} SMPEG_FilterInfo;/* MPEG filter definition */struct SMPEG_Filter;/* Callback functions for the filter */typedef void (* SMPEG_FilterCallback)( SDL_Overlay * dest, SDL_Overlay * source, SDL_Rect * region, SMPEG_FilterInfo * filter_info, void * data );typedef void (* SMPEG_FilterDestroy)( struct SMPEG_Filter * filter );/* The filter definition itself */typedef struct SMPEG_Filter {  Uint32 flags;  void * data;  SMPEG_FilterCallback callback;  SMPEG_FilterDestroy destroy;} SMPEG_Filter;/* SMPEG built-in filters. */#ifdef __cplusplusextern "C" {#endif/* The null filter (default). It simply copies the source rectangle to the video overlay. */ extern DECLSPEC SMPEG_Filter * SMPEGfilter_null(void);/* The bilinear filter. A basic low-pass filter that will produce a smoother image. */ extern DECLSPEC SMPEG_Filter * SMPEGfilter_bilinear(void);/* The deblocking filter. It filters block borders and non-intra coded blocks to reduce blockiness */ extern DECLSPEC SMPEG_Filter * SMPEGfilter_deblocking(void);#ifdef __cplusplus};#endif#endif /* _MPEGFILTER_H_ */